Coating apparatus



C. A. HACH COATINGAPPARATUS July 5, 19 32.

2 Sheets-Sheet l Filed March 16, 1928 HHIHHIHHHI July 5, 1932. c. A.HAcH 1,866,100

COATING APPARATUS Filed March 1e. 1928 2 Sheets-Sheer. 2

Patented July 5, 1932 n Y I,-

CLARENCE Atenei: neon, en oen eeiemtmnors; eseieieon nnnenino COMPANY,mconpcnnmn'p, en NEW Yonx, n. Y.; A .Conn-@Amon onunw V"ftnl' n COATING-nr'ruem-li'rusL Appneat'iqg mea Maren 1e, 1925.1 seria; No.. 262,116,

`lhis. invention relates tonoating annata.-

tus,-end more Partien-lady to .apparatus for -Y Coat-.ing circularobjeots, snob. as .eablehreels rllie objeet'of this invention topreyide. anzanparatns for eeonornioally, ellioiently-and expeditiouslyCoat-,ing an ertiele, wlrieh. `.also proteetsthe operator.frornenPoe-n-re to spray ln aoeordanee with one embodiment .of thepresent invention, there ievprovideda `spraying booth open iat bothiendst .nolndillg as nai-r. of: opnoeitelndienosed, .spray eens mountedona-rrnswliiehare pivotallee .mounttire snntaoe-to be ena-tedio quietly'snbjeoted to the coating medium. Mean@ fogexhgust ing Weste vapor anealso .snnoliod'nlrfieliexhaus-ting `nieane finolndes destrnetilole.vloailleo l disposed at en angle. snelitliat' .their .snrtaeowill beperoendienler to the direction et the defleetodv spray and-throngl-.iwliieli the vapor loden atmosphere-.io eXhalisted- Y 1.

.Other toeter-es and advantages of. the

-ven-tionwill beeome apparent fro-nnthe following detaileddeeeriotionthereot taken .in connection with the Loc.ornpefnyiA-Igitjrxnewf ingsnwliie-ll@ f .t

Fig,1- yins e. fronteleygtton 0i a. spraying apparat-ns .embodying theteatii-ees ofi-this invention; Fig. `2 is e. plan view ofthe opreyingen? params-with the toptloereot remove-d.;

Fig 3 is al .fragmentary seetional view.

- thereof taken `ori-the line of Fig; 1 Llook-3- in-g in. the direetonindicated by the* .ar-roue Fig l is a .fragmentary seotionalnlew-ithereof taken on therli-ne l'ffl' oit-.Fig .2 leek?.

in in thedreQtiQn indicated thea-ironie;

hand-lever and .the Sorano-rene; o

Sonie, .and

The ...sor-ey are.

illustrated bythe drawingsisn` v`cableree' 'ige' .5 isfan enlargedfragment-arnhemeleYat-onafl View of the mechanism for panting;k arelatye.: movement-between `gti- 1e- Figi? is elevationalnifaino.dfilifed4 form of baie which anaratus2 c he anparatns'llnetratedby the d.rtwsfinnge is 'designed for theeininltaneons painting lot`thefeateror Sniffer-roof the lleadsvoa Cablereel, but it is to beunderstood that the' in;

f Venton is not liinited to eny-nantienler use Referringlto thedrawings. .in which Alike neierle11'c-ev chelna'lctersdesignato likte,parts' throughoutthe .several views,- 'the numeral y maybe employed inthe y 10 vvlesigna-tes generally aipant `spire-ying boothhaving` SideWalls :L1- Tf1l-support'ng.vv

auroof 12., yllountecl adjacent the lll; are a motor 13 and etranemisson4 .deniee 14:` ofV any Well-,known type driven ytherebyV t04Whie'lr geared a shaft l'forming-an extension ojiaroller 16.;The-roller 1.6. and a eompan-.ionroller (Fg- 2). are rotatably` mountedtransversely ofthe booth with ,the tops thereof leveljwith. the oor otthe'boothand theprellers are connected by any suitable? meanssuohVaes.proeket and chain drive-indi.- cated generallyby the lilumeral 18for .transemtting power from the roller' -16' `tothe roller 17. vTherollers 216 and-17 are equipped-.withguide ifngesr-QO and 21 topos-tonthe .objectto be coated which inthe spenfcembediment" Y 22 lian-inganges 19e-19. o Y A Vertical supporting rod 24 (Eig. se-` cured to theoonin `front of ,and'neal :the-

elld .0f the :booth: 10 and scoured to the booth: bymeansiof va? bracket25,. has en arm 26.-.

- pivotally mounted inkv a' $10.623 ein slotted.

junction member 27 `threaded to 'theupper` and lQWer'pLoIt-ions .oftherod-.24Minnternledetetsfends, which arm .sup-portee" spray gun 28 to@which theV .coating mteieilf such 4paint:and ein under-pressurefmayhe-eunplied-thno@exble tubes 29and= 3135 respeogtyeliye A-.md 82rotatably mounted- ,ill bearings iz located on bracketsv extend-mgLOlltw:1.1161137 4fr onn :the ffmc' -ofxthe A hanger carriage designatedgenerally by the numeral 39, the construction of which is clearly shown,is mounted upon the rod 32 and movable longitudinally thereof, beingsupported thereon by means vof rollers -46 havingV concave peripheries-which conform tofthe surface of the rod 32. There is rotatably mountedin the Vhanger carriage 39 a collar 41 vlongitudinally slidable ontherod'32/,and keyedV thereto by means of ai key 43 which is'slidablypositioned in av slot 44 in the -rod 32 near the right hand end Ythereof as viewed in Figs. 1 and 2.

Depending from the carriage'39 and fixedv thereto is a verticallydisposed rod 45 which is slidably mounted at its lower end between` twooppositely disposed channel irons 46-46 mounted in the floor and havingtheir'tops level therewith.v At a point intermediate the lends?` of thevrod 45 there is pivoted in a slot 42 of a slotted junction member 47threaded tothe? upper and lower portions'offa rod 45 aniarm 48, similar'to the arm 26 described hereinbefore, which carries a spray gun 49to-Ywhich paint and air under'pressure may besuppli'ed by means offlexible tubes 50 and 51, respectively, and which is attached to 'the'collar41by means of-a link 153 pivo'tally secured to an arm 54 extendingfrom the collar "41. A manually operable lever 5 5 'is' connected to thearm '48 Vthrough a worm 57" controlled` by a hand wheel 58 f mountedon'the bottom of the lever 55, and

a worm gearv59- which is an extension of a pin 61'to which the armV 48is secured kby means of pins 62-62 andv simultaneously' controls themovement ofthe arms 26and 48 since the arm 26 is 'indirectly connectedto" the arm 4 8 by means ofthe linkv 53, the

varmV 54, the collar 41,l the rod 32, the collar 38fand the link 36.'The worm and gear arrangement described'hereinbefore makes possible .theladjusting of the angle between the ha'nd'lever`55randr the arms 26and48, facilitating the painting of reels of various sizes.

type connectedto exhaust-ducts 67-67 which communicate with exhaustVchambers 68-68 disposed within thebooth at the rear and on each sidethereof. These chambers 68-68 are faced alonga4 portion thereofadjacentthei rolls 216 and 17l with removable, destrucltible exhaustbaliles69'-69 extending fromV lthe iioor to the root` of the-booth and di'syThe arms 26- and 48 .have .counter weights 1631-63 mounted at the endthereof posed at such an angle that the spray ejected from the guns 28and 29 and defiected from the reel 22 will impinge directly upon them.Similar removable, destructible exhaust baffles 70-70 are alsopositioned on the face of the chambers 68-68 and located at the rear' ofthe booth immediately in back of the set of baii'ies 69-69, parallel tothe sides 11-11 of the booth and extending from the floor toa pointsubstantially half way up to the top of the booth.

The baiies 69-69 and 70-70 are made in Vsections as shown in Figs. 1 and4 and are rem'ovablyattached to the face of the exhaust ducts., Thesesections are constructed of somedestructible material, such as paper,

cardboard or the like and are formed with a plurality of vertical slots71471 in the ma--l terial. Inthe preferred form ofthese'bales asshownl'in Fig'. 4 cleats 7 3 7 3 are inserted through the slots 71-71vin a manner such thatth'e strips 74-74 formed by cutting the slots7l-71 in ther paper .or like material are staggered, alternatelypassing'over and Vunder the cleats73-73. Another kind of baiiie'is shownin Fig."7 wherein the baffle is made of cardboard, :papier-mch or somelikematerial which is cheap enough to warrant its destruction whenit-becomes saturated with `paint toV such an extent as to interferewith'its effectiveness. rIn this kind of baffle the alternate concaveand convex strips instead of being held in place by cleats, as

in' `the form described hereinbefore, are formed by'moldingthe materialand then baking it or dryingv it sothat the baille will retain itsshape. v f

' The operation of the coatingmechanism is'as follows: A cable reelv 22is rolled in at the front of the booth 10 and onto rolls 16 and 17 withVone of the ianges of the reel positioned between the guideflanges`20-20 and 21-21 on the rolls 16-and 1'( and the motor 13 isstarted whereupon the rolls y16 and 17 larecaused to rotate through thetransmission 14, the shaftl' and the chain and sprocket drive 18 therebycausing the cable, reell 22 to be rotated in the direction shown' by thearrow in Fig. 3. The carriage 39 isV then moved along the rod 32 until"the spray gun is substantially the same distance from'the reel as isthe Vsprayl gun 28 andthe spray guns' 28 and 49 mounted on the arms 26vand 48g are adjusted to accommodate a reel of the particular` diameterwhich it is desired-)to coat. The adjustment of the angle between thelever 55 and lthe arms 26 and 48 is accomplished by turning the handwheel 58 which turns the Yworin 57 f and the worm andis'imultaneouslytherewith the4 arm 26 will also be moved through the link'553`, the

rod 32 and the link 36 in a manner similar to that describedhereinbefore in connection with the operation of the arms 48 and 26 bymeans of the lever 55. After the arm 48 has been adjusted according tothe width of the reel and the arms 26 and 48 have been adjustedaccording to the diameter of th-e reel, paint and air under pressure aresupplied to the guns and the lever 55 is moved outwardly from the booth10, thus simultaneously moving the arms 26 and 48 from a point near thecenter of the reel 22 toward its upper edge. Since the reel'is rotatedby the rollers 16 and 17 as the spray guns are actuated, the outsidefaces of the reel are completely painted simultaneously.

During the painting operationthe spray from the guns 28 and 49 isdirected at the reel 22 at an angle andy the deflected spray will bedirected at such an angle as to im-v pinge directly upon the baffles69-69 while y any excess spray not drawn against thebaliles 69-69 willbe picked up by the baiies 7,0-70. When the painting operation has beencompletedthe reel may be rolled out of therear of the booth and theoperation repeated until the exhaust baiies 69-69 and 70-70 aresaturated or clogged with paint when-they may be removed, new baflieslinstalled and the operation started up again. Y n

Frorrpthe foregoing description it will be seen that the coatingapparatus embodying the invention provides an expeditiousand eliicientmeans for economically applying coating material to an article which atthe same time protects the workman from the disagreeable and unhealthfulspray vapor.

What is claimed is:

l. In a mechanism for'applying coating material to circular articles, ahood open at front and rear ends, means for rotating an article to becoated within the hood, oppositely disposed arms carrying spraying meansJfor applying coating material simultaneously to both sides of thearticle, both of the arms being movable simultaneously across thearticle, means for adjusting the relative position of the arms toaccommodate articles of different widths, means for adjusting theposition of the arms to accommodate articles of differentcircumferences, and exhaust means equipped with removable, destructiblebailles disposed at an angle such that spray ejected from the sprayingmeans and deliected from the article will impinge directly upon them. f

2. In a mechanism for applying coating material to articles, supportingmeans engaging the periphery of the article to be coated,

ing said arms, means for varying the position j both sides of thearticle comprising coating members and arms for supporting the coatingmembers, means for pivotally supporting'said arms, means for varying theposition of the arms relative to said pivotal means for i varyingV thepositionof said coating members relative to the article, meansoperatively connected to .said pivotal supporting means vfor actuatingsaid` arms and said coating members, and means for varying therelative.v

positions of said arms and coating members. 4. In a mechanism forapplying a coating material to articles, supporting means engaging theperiphery of the article to be coated, means for actuating'saidsupportingr` means for' imparting a rotative movement to the article,means for. coating the article comprising a coating member and an armfor supportingthe coating member, means e for pivotally supporting saidarm, means vfor varying the position of said arm relative to saidVpivotal means for varying the position of saidkcoating member relativet0 the article,v

Vand means operatively connected to said pivotal supporting meansforactuating said arm and saidfcoa'ting member.

',Inwitness whereof I hereunto subscribe my name this 6th day of March,A. D. 1928.

, CLARENCE ALBERT HACH.

means for actuating said supporting `means for imparting a rotativemovementV to the article, means for simultaneously coating both sides ofthe article comprising coating members and arms for supporting thecoating members, means for pivotally support-

